Material properties and clinical application of zirconia-reinforced lithium silicate ceramics

Kim,  Jong-Eun; Kim,  Jee-Hwan; Shim,  June-Sung; Park,  Young-Bum

J Korean Dent Assoc > Volume 56(3); 2018 > Article

The Journal of The Korean Dental Association 2018;56(3):159-166.
Published online March 31, 2018.

지르코니아 강화 리튬 실리케이트 세라믹의 특성과 임상적용

김종은¹, 김지환², 심준성³, 박영범⁴

^¹연세대학교 치과대학 치과보철과학교실
^²연세대학교 치과대학 치과보철과학교실
^³연세대학교 치과대학 치과보철과학교실
^⁴연세대학교 치과대학 치과보철과학교실

Material properties and clinical application of zirconia-reinforced lithium silicate ceramics

Jong-Eun Kim¹, Jee-Hwan Kim², June-Sung Shim³, Young-Bum Park⁴

¹Department of Prosthodontics, Yonsei University College of Dentisty
²Department of Prosthodontics, Yonsei University College of Dentisty
³Department of Prosthodontics, Yonsei University College of Dentisty
⁴Department of Prosthodontics, Yonsei University College of Dentisty

Abstract

The zirconia-reinforced lithium silicate ceramic material is a material in which lithium silicate glass contains about 10% by weight of zirconia oxide (zirconia oxide). This material has both the advantages of glass ceramics and zirconia, and it is attracting attention as a CADCAM material for single tooth restoration. ZLS materials have improved strength compared to widely used e.max (lithium disilicate ceramic) materials. It can be used for single crown restoration and ensuring a thickness of 1.5 mm is very important for reliable treatment. In the case of Celtra Duo, heat treatment may be helpful in terms of strength and abrasion resistance. Hydrofluoric acid treatment is helpful for bonding and hydrofluoric acid for a short time may not help to improve the bonding strength. Although zirconia-reinforced lithium silicate ceramic materials have been continuously conducted and published in the laboratory, reliable clinical studies are still lacking. Additional clinical studies will be a very important part of establishing a scientific basis.

Key Words: zirconia reinforced lithium silicate;vita suprinity;celtra;CAD/CAM;digital technologies;